rust/hedgewars-server/src/main.rs
author sheepluva
Sat, 04 Jul 2020 03:11:41 +0200
changeset 15665 63e2b7b2ec47
parent 15102 80ff12edf5e6
child 15795 40929af15167
permissions -rw-r--r--
Merge chat-scaling (= current state of branch "ui-scaling") into default branch
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#![allow(unused_imports)]
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#![deny(bare_trait_objects)]
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use getopts::Options;
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use log::*;
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use mio::{net::*, *};
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use std::{env, str::FromStr as _, time::Duration};
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mod core;
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mod handlers;
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mod protocol;
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mod server;
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mod utils;
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use crate::server::network::{NetworkLayer, NetworkLayerBuilder};
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const PROGRAM_NAME: &'_ str = "Hedgewars Game Server";
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fn main() {
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    env_logger::init();
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    info!("Hedgewars game server, protocol {}", utils::SERVER_VERSION);
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    let args: Vec<String> = env::args().collect();
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    let mut opts = Options::new();
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    opts.optopt("p", "port", "port - defaults to 46631", "PORT");
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    opts.optflag("h", "help", "help");
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    let matches = match opts.parse(&args[1..]) {
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        Ok(m) => m,
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        Err(e) => {
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            println!("{}\n{}", e, opts.short_usage(""));
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            return;
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        }
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    };
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    if matches.opt_present("h") {
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        println!("{}", opts.usage(PROGRAM_NAME));
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        return;
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    }
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    let port = matches
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        .opt_str("p")
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        .and_then(|s| u16::from_str(&s).ok())
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        .unwrap_or(46631);
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    let address = format!("0.0.0.0:{}", port).parse().unwrap();
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    let listener = TcpListener::bind(&address).unwrap();
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    let poll = Poll::new().unwrap();
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    let mut hw_builder = NetworkLayerBuilder::default().with_listener(listener);
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    #[cfg(feature = "tls-connections")]
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    {
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        let address = format!("0.0.0.0:{}", port + 1).parse().unwrap();
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        hw_builder = hw_builder.with_secure_listener(TcpListener::bind(&address).unwrap());
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    }
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    let mut hw_network = hw_builder.build();
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    hw_network.register(&poll).unwrap();
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    let mut events = Events::with_capacity(1024);
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    loop {
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        let timeout = if hw_network.has_pending_operations() {
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            Some(Duration::from_millis(1))
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        } else {
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            None
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        };
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        poll.poll(&mut events, timeout).unwrap();
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        for event in events.iter() {
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            if event.readiness() & Ready::readable() == Ready::readable() {
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                match event.token() {
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                    token @ utils::SERVER_TOKEN | token @ utils::SECURE_SERVER_TOKEN => {
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                        match hw_network.accept_client(&poll, token) {
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                            Ok(()) => (),
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                            Err(e) => debug!("Error accepting client: {}", e),
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                        }
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                    }
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                    utils::TIMER_TOKEN => match hw_network.handle_timeout(&poll) {
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                        Ok(()) => (),
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                        Err(e) => debug!("Error in timer event: {}", e),
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                    },
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                    #[cfg(feature = "official-server")]
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                    utils::IO_TOKEN => match hw_network.handle_io_result(&poll) {
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                        Ok(()) => (),
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                        Err(e) => debug!("Error in IO task: {}", e),
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                    },
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                    Token(token) => match hw_network.client_readable(&poll, token) {
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                        Ok(()) => (),
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                        Err(e) => debug!("Error reading from client socket {}: {}", token, e),
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                    },
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                }
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            }
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            if event.readiness() & Ready::writable() == Ready::writable() {
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                match event.token() {
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                    utils::SERVER_TOKEN
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                    | utils::SECURE_SERVER_TOKEN
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                    | utils::TIMER_TOKEN
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                    | utils::IO_TOKEN => unreachable!(),
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                    Token(token) => match hw_network.client_writable(&poll, token) {
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                        Ok(()) => (),
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                        Err(e) => debug!("Error writing to client socket {}: {}", token, e),
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                    },
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                }
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            }
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        }
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        match hw_network.on_idle(&poll) {
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            Ok(()) => (),
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            Err(e) => debug!("Error in idle handler: {}", e),
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        };
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    }
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}